Hello Aspirant, hope you are doing good.

So, to answer your question, I'll mention each of the subjects individually and I'll tell you about the maximum weightage of the chapters , the chapters with the maximum scoring side , and accordingly you can prepare yourself for that.

Physics : In physics , the maximum weightage is of the modern physics part, It has 5 questions in total and has 20 marks reserved for it. Along with that, the maximum weightage is occupied by topics like heat and thermodynamics, optics , current electricity , and electrostatic with 12 marks each. So if you can ace these topics, you are good to go to score 50+ in physics although keep in mind , other topics are equally important.

Chemistry: In chemistry , the maximum weightage is of the Transition Elements and Coordination Chemistry and Periodic table and Representative Elements with 12 marks and 3 questions in each. Then comes Thermodynamics And Gaseous State , atomic structure, chemical bonding, chemical and ionic equilibrium, solid state and surface chemistry and nuclear chemistry with 8 marks in each. So , if you are well versed with these topics , you can surely score 50+

Mathematics: In maths , the maximum weightage is of  Coordinate Geometry with 20 marks and 5 questions. Then comes Limits, Continuity and Differentiability , integral calculus with 12 marks each and 3 questions.  Then comes matrices , probability, 3D geometry, vector algebra 1with 8 marks each.

You can go through this for more details : https://engineering.careers360.com/articles/jee-main-syllabus-weightage

Hope this helps you. GOOD LUCK !!

Hey aspirant !!

If you want prepare for the JEE Main 2021 exam, you must have a strategic preparation plan to study. The syllabus of JEE Main is vast encompassing the entire class 11 and 12 part of Physics, Chemistry and Mathematics. You must note that NTA does not specify any important topics for JEE Main and thus students must study the entire prescribed syllabus. However, if we look into the past year JEE Main question papers , it can be noted that there are some topics which have higher weightage over the others. All such topics with weightage can be taken as the most important

Most Important Chapters of JEE Main 2021

• Physics
• Rotational Motion
• Thermodynamics
• SHM
• Electrostatics
• Magnetism
• Optics
• Modern Physics

• Mathematics
• Complex Number
• Conic Section
• Circle
• Calculus
• Vector & 3 D
• Probability
• Trigonometric Equation
• Properties of Triangles
• Quadratic Equation
• Sequence and Series
• Permutations and combination

• Chemistry
• Chemical bonding
• Electrochemistry
• Coordination compound
• Salt analysis
• Ionic equilibrium
• Thermodynamics & thermochemistry
• Aldehydes and ketones
• Aromatic hydrocarbons
• GOC isomerism
• Liquid solutions
• Alkyl halides and aryl halides

These are the most important topics for JEE main .

Hope this helps you !!

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